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In a battle 70% of the combatants lost one eye,80% an ear ,75% an arn,85% a leg,x% lost all four limbs the minimum value of x is

In a battle 70% of the combatants lost one eye,80% an ear ,75% an arn,85% a leg,x% lost all four limbs the minimum value of x is

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Grade:12

2 Answers

Arun
25750 Points
6 years ago
Let us start with 70% who lost one eye  
Consider 80% lost one ear. 
This means 20% did not lose one ear.  
Suppose this 20% all lost one eye as well.  
This means 70% - 20% = 50% lose one eye and one leg  

Consider 75% lost arm next.  
This means 25% did not lose arm.  
Suppose this 25% all lose one eye and one ear.  
This means 50% - 25% = 25% lose ear, one eye and one arm  

Consider 85% lost a leg  
This means 15% did not lose leg.  
Suppose this 15% all lose ear, one eye and one arm.  
This means 25% - 15% = 10% lost all 4 limbs.  
Now, it is given that x% lost all four limbs. So, x=10
krishna chaithanya
5 Points
5 years ago
30% of combatants hasn't lost one eye
20% of combatants hasn't lost one ear
25% of combatants hasn't lost one arm
15% of combatants hasn't lost one leg
Who has lost atleat one limb = 30+20+25+15
                                                    = 90%
Who has lost all four limbs = 100-90=10%

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